I keyed in CHIP-8 from the VIP manual and saved it on the SPI flash. Then I tried a couple of CHIP-8 programs. One of the programs is VIP Space Intercept (pg 43 of the manual). It works quite nicely. I have a picture of it up in the gallery. (I'm using my old Apple IIc monitor this time which is why the long persistence of the phosphor is seen) I also tried VIP Wipe Off (pg 42) which also works.
So, I think my VIP ROM re-write is good because it works with CHIP 8 right from the manual. The SPI flash read and write has also been working well. It is "lightning fast" compared to a cassette tape.
I want to check the I/O ports next and then the standard VIP operations will be complete.